/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package edu.capex.javaee.cookies;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author Acer
 */
public class MyServlet extends HttpServlet {
   
    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
        } finally { 
            out.close();
        }
    } 

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {

        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();

        out.println("<html>");
        out.println("<head>");

        out.println("<title>A web page");
        out.println("</title>");

        out.println("<body");
        Cookie[] cookies = request.getCookies();

        int r,g,b;

        r = g = b = 0;

        r = (int) (Math.random()*255);
        g = (int) (Math.random()*255);
        b = (int) (Math.random()*255);
        boolean foundCookie = false;

        for (int i= 0; i < cookies.length; i++) {
            Cookie temp = cookies[i];
            if(temp.getName().equals("color")){
                out.println("bgcolor = "+temp.getValue());
                temp.setValue("#"+Integer.toHexString(r)+Integer.toHexString(g)+Integer.toHexString(b));
                response.addCookie(temp);
                foundCookie = true;
            }
        }

        if(!foundCookie){

            Cookie temp = new Cookie("color", "cyan");
            temp.setMaxAge(24*60*60);
            temp.setComment("Comentario");
            response.addCookie(temp);
        }
        out.println(">");
        out.println("<h1>Setting and Reading Cookies </h1>");
        out.println("This page will set its background color using a cookie when reloaded.");

        out.println("</head>");
        out.println("</html>");

        out.close();
    } 

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
